Issue #2594937 by Peacog, cilefen, Sagar Ramgade, chgasparoto, aerozeppelin, iStryker, feraline, alvar0hurtad0, Cottser, Wim Leers, xjm, sebas5384, almaudoh, gvso, racarvalho1987: Empty 'libraries:' in theme .info.yml file produces confusing PHP warning

Issue #2340623 by ceng, R.Muilwijk, dawehner, klausi, Rj-dupe-1, xjm, sebas5384: Views REST export does not support exposed filters